Keep a mail entry per mail, never the body (issue 1517)

modules/mesh-mail-reader/module.json

@@ -13,6 +13,18 @@
     "seat:mail-store.read",
     "seat:mail-store.accounts"
   ],
+  "requires": ["postgres-database"],
+  "contributes": {
+    "postgres-database": {
+      "name": "mail-reader"
+    }
+  },
+  "binds": {
+    "postgres-database": "${dir:state}/database.json"
+  },
+  "secrets": {
+    "postgres-database": "${dir:state}/database.secret"
+  },
   "config": {
     "callers": {
       "type": "list",
@@ -60,6 +72,31 @@
       "merge": "json",
       "template": "files/callers.json",
       "takes-config": ["callers"]
+    },
+    {
+      "id": "database-url",
+      "type": "file",
+      "path": "${dir:state}/database.url",
+      "mode": "0600",
+      "owner": "mesh-mail-reader",
+      "template": "files/database-url"
+    },
+    {
+      "id": "prepare",
+      "type": "process",
+      "name": "mesh-mail-reader-prepare",
+      "artifact": "tools",
+      "run": [
+        "./mesh-mail-reader",
+        "prepare"
+      ],
+      "run-once": true,
+      "env": {
+        "DATABASE_URL_FILE": "${dir:state}/database.url"
+      },
+      "restart-on": [
+        "database-url"
+      ]
     }
   ],
   "build": {
@@ -75,6 +112,7 @@
           "mesh-mail-reader"
         ],
         "env": {
+          "DATABASE_URL_FILE": "${dir:state}/database.url",
           "MESH_MAIL_READER_CALLERS": "${dir:state}/callers.json"
         }
       },